Bryonia dioica
Taxonomy: Spermatophyta, Cucurbitales, Cucurbitaceae, Bryonia
Published: 2005-06-01
Pollen Description
Shape, Size and Aperture
pollen unit: monad, dispersal unit and peculiarities: monad, size (pollen unit): medium-sized (26-50 µm), size of hydrated pollen (LM): -, shortest polar axis in equatorial view (LM): -, longest polar axis in equatorial view (LM): -, shortest diameter in equatorial or polar view (LM): -, longest diameter in equatorial or polar view (LM): -, pollen class: -, polarity: isopolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): -, P/E-ratio (dry pollen): prolate, shape (dry pollen): -, outline in polar view (dry pollen): circular, infoldings (dry pollen): aperture(s) sunken, aperture number: 3, aperture type: colporus, aperture condition: colporate, aperture peculiarities: aperture membrane psilate
Ornamentation and Structure
LM ornamentation LM: -, nexine: -, sexine: -, SEM ornamentation SEM: heterobrochate, reticulate, suprasculpture SEM: -, TEM tectum: semitectate, infratectum: columellate, foot layer: continuous, endexine: compact-continuous, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: pollenkitt, reserves in cytoplasm: starch, cell number: 2-celled, Ubisch bodies: absent
Annotations: margo reticulate to striate
Author(s) of diagnosis: Weber, M.; Schneider, H.; Halbritter, H.
Pictures
Picture legend
- flower(s), photographer: Schneider, H.
- equatorial (left) and polar (right) view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Halbritter, H.
- vegetative nucleus (asterisk) and generative cell; note starch grains within vegetative cytoplasm - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.
- pollen wall with pollenkitt inside the exine cavities - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.
Literature
- (1981) Zur Bestäubung von Bryonia dioica Jacq. Ber Deutsch Bot Ges 94: 287-290
Copyright and Citation
Cite this publication as:
Weber M., Schneider H., Halbritter H. 2005. Bryonia dioica. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Bryonia_dioica/107519; accessed 2025-04-28